Question: What is the Class IC flammable liquid with the highest no-observed-adverse-effect level whose instance of is Class IC flammable liquid ?
Paraphrase: What is the IC Class flammable liquid with the least observed adverse effects?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q21009056 . ?ent wdt:P2717 ?obj . ?ent wdt:P31 wd:Q21009056 } ORDER BY DESC(?obj)LIMIT 5 
Answer: chlorobenzene